I could make the case for the Wintec and for the Abetta. There is one of each in my barn, and both have held up famously over years of riding. The Wintec we even use for smaller shows. I think the Abetta is lighter and easier to balance in, but it is more of a barrel-style setup. As the Wintec we have is a full QH bar, I don't know about the sizes there, but the Abetta is a semi and fit a Morgan/gaited mix with high withers. My one complaint with both saddles is the stirrups. The Abetta adjusts to barely the right length (I am a shorty), and the buckle style makes it impossible to punch more holes and still have correct reinforcement on the leathers. The Wintec is just extremely stiff. If you don't change the lengths a lot, It's definitely liveable. Other than that, both great saddles!
P.S. Look at both saddles in person before you buy if you are catalog shopping. The Wintec won't pass for leather, nice as it is.